1. Topic 2.1 – Relative Velocity Mr. Jean
IB Physics
Topic 2.1 – Relative Velocity
Mr. Jean

2. The plan: Video clip of the day Relative Motion
Even & Uneven projectiles
Additional Practice questions

3. Relative motion:
Have you ever been stopped at a stop light and the car in front of you begins to roll backwards?
What did you do?

4. Relative motion: Instinctively some of you may try to hit the brakes…
But you realize you are stopped.
Relative Motion can be deceiving.

5. Relative Motion in Practice:
Quite old, but if you want to see something your grandparents watched about this same topic check it out.

6. Relative motion:
Consider the following: You are paddling to cross a 624m wide river. There is a camp site directly across the river. Your paddling velocity is 3m/s; however the water is pushing on you at 2m/s in the southern direction. (Down)
a) How long will it take you to reach the river bank?
b) Where will you land relative to the campsite?
c) What is the combined velocity of the canoe? At what angle?

15. Relative Motion Questions
Practice Questions:
P. 110
#21, 22, & 27